Method and apparatus for controlling data transfer direction on

Details Method and apparatus for controlling data transfer direction on Method and apparatus for controlling data transfer direction on

1978-10-10

1981-08-11

Atkinson, Charles E.

Boots, shoes, and leggings

G06F 1300

Patent

active

042837600

ABSTRACT:
In a system comprising a memory, an input/output control device, a direct memory access controller and a data bus, the transfer of data between the memory and the input/output control device via the data bus by means of said direct memory access controller during the period of direct memory access mode is effected by controlling the data transfer direction on a data bus so that a control signal for determining the direction of transferring the data by said data bus is recognized in an inverted manner at the memory or the input/output control device only during the period of a data transfer cycle in the direct memory access mode.

REFERENCES:
patent: 4053950 (1977-10-01), Bourke et al.
patent: 4056848 (1977-11-01), Giley
patent: 4067059 (1978-01-01), Derchak
patent: 4075691 (1978-02-01), Davis et al.
patent: 4080651 (1978-03-01), Cronshaw et al.
patent: 4099236 (1978-07-01), Goodman et al.
patent: 4122520 (1977-10-01), Adamchick et al.
patent: 4137565 (1979-01-01), Mager et al.
"M6800 Microprocessor Applications Manual", Published by Motorola in 1975, pp. 4-31 to 4-38.
Microprocessors and Microcomputers by Soucek, Published by John Wiley and Sons in 1976, pp. 196-208.
Microprocessors & Small Digital Computer Systems for Engineers & Scientists by Korn, Published by McGraw Hill in 1977, pp. 155-164.

Affiliated with

Also associated with

Rating

Method and apparatus for controlling data transfer direction on does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for controlling data transfer direction on , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling data transfer direction on will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1029118